Scientists study effects of caffeine on exercise performance

March 21, 2012

(Medical Xpress) -- Whether you are an elite athlete trying to gain a competitive edge, or a regular bike commuter, consuming caffeine one hour prior to exercise has the potential to improve your performance.

Lecturer and with The University of Queensland's School of Human Movement Studies, Dr. Tina Skinner, has recently published the results of her work on the links between caffeine consumption and athletic performance.

"Caffeine's performance-enhancing effect was thought to be related to the levels of the drug circulating within the bloodstream during ,"Dr. Skinner said.

Instead, Dr. Skinner's study of caffeine's impact on athletic performance, found that the time in which caffeine enters the body, not the amount of caffeine in the bloodstream, is the key to enhancing .

For her work, Dr. Skinner has received three awards, including a 2011 Australian Sports Medicine Federation Fellows Award for Best New Investigator in Exercise and .

"It does not seem to matter how much caffeine enters your bloodstream, as long as it is consumed within one hour prior to starting exercise," she said.

Three were carried out on national level male rowers, and triathletes and active healthy males.

Dr. Skinner and her team then examined the influence of the caffeine dose, supplementation timing and post-meal timing on caffeine concentrations in the bloodstream and subsequent exercise performance.

"We found that when caffeine is consumed following a high-carbohydrate meal the amount of caffeine that enters the bloodstream is delayed and concentrations reduced compared to when caffeine is consumed in a fasting state," Dr. Skinner said.

"It appears that it is the proximity of caffeine supplementation timing to the commencement of endurance exercise, rather than the achievement of peak levels of caffeine in the blood stream, that influences the performance-enhancing effects of caffeine," Dr. Skinner said.

However, we was found that individually manipulating the timing of to ensure peak levels were in the bloodstream did not improve endurance exercise performance, she said.

Dr. Skinner hopes the results of this study will have an important role in informing the usage of caffeine in sports and the design of future studies involving caffeine supplementation.

Explore further: Genetic variants associated with caffeine intake identified

Related Stories

Genetic variants associated with caffeine intake identified

April 6, 2011

Two genes in which variation affects intake of caffeine, the most widely consumed stimulant in the world, have been discovered. A team of investigators from the National Cancer Institute, Harvard School of Public Health, ...

Can consuming caffeine while breastfeeding harm your baby?

February 21, 2012

Babies are not able to metabolize or excrete caffeine very well, so a breastfeeding mother's consumption of caffeine may lead to caffeine accumulation and symptoms such as wakefulness and irritability, according to an interview ...

Recommended for you

Bright lighting encourages healthy food choices

May 26, 2016

Dining in dimly lit restaurants has been linked to eating slowly and ultimately eating less than in brighter restaurants, but does lighting also impact how healthfully we order?

Big Data can save lives, says leading cancer expert

May 16, 2016

The sharing of genetic information from millions of cancer patients around the world could be key to revolutionising cancer prevention and care, according to a leading cancer expert from Queen's University Belfast.

New soap to ward off malaria carrying mosquitoes

May 13, 2016

(Medical Xpress)—Gérard Niyondiko along with colleagues Frank Langevin and Lisa Barutel has posted a project on the crowd source funding site ulule for a product called Faso Soap. They claim the soap can cut in half the ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.